baber/WOPTO huggingface dataset:
Patent GB-322424-A (GB)
Title: Improvements in the manufacture and production of granular mixed fertilisers containing ammonium nitrate, and apparatus therefor
IPC: C05C1/02
Filed: 1928-09-21
Abstract: 322,424. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 21, 1928. Divided on 320,708. Manures.-Mixed fertilizers containing ammonium nitrate, but not containing calcium carbonate, in the form of melts are sprayed in fine drops at a temperature of about 15‹ C. to 35‹ C. above the solidification point of the melt, the drops being solidified bv cooling. In one example, diammonium phosphate and ammonium nitrate are mixed in certain proportions and sprayed at 180‹ C., the homogenous melt setting at 92‹ C. In a second example, a fertilizer is obtained containing nitrogen phosphates and potash from potassium chloride, ammonium nitrate, and diammonium phosphate, the first two being mixed at 135‹ C. and the mixture cooled to 105‹ C. for adding the phosphate. The mixture is sprayed at 105‹ C. and sets at 80‹ C. in smooth globular particles of small size. An apparatus is shown in Fig. 1 for mixing and spraying, the materials being mixed in a heated chamber a from which the melt flows into a rotating receptacle c. The receptacle c revolves at a high speed and is provided with apertures d through which the melt is sprayed by centrifugal force. In a modification, the rotating vessel is a curved disc over the edge of which the liquid is thrown by centrifugal force. In another modification, the receptacle c has stationary walls and a rotary bottom between which and the walls is a space for the melt to escape.
Patent GB-724143-A (GB)
Title: Steroids
IPC: C07J75/00
Filed: 1952-07-08
Abstract: The invention comprises 11(a )-acyloxy-6-dehydroprogesterones, and the preparation thereof by reacting 11(a )-hydroxy-6-dehydroprogesterone with an acylating agent, e.g. ketene, a ketene of a selected acid, an acid, acid chloride or acid anhydride.  Examples disclose the use of acetic, propionic and octanoic anhydrides, b -cyclopentylpropionyl and benzoyl chlorides as acylating agents.  Specification 724,094 is referred to.
Patent GB-823639-A (GB)
Title: Therapeutic tetracycline compositions
IPC: A61K31/65
Filed: 1958-05-29
Abstract: A therapeutic composition comprises a form of tetracycline and a non-toxic polyimidophosphate salt which may be present in an amount by weight equal to at least one fifth to twice the weight of the tetracycline compound.  Examples of the forms of tetracycline which may be used are: organic and inorganic addition salts, for example, the bromide, sulphate, nitrate, orthophosphate, acetate, tartrate and citrate; metal salts, for example, those with sodium, potassium, calcium, aluminium, magnesium and zirconium; simple esters, preferably those which are rapidly hydrolysed in the body; chelates and complexes, for example, tetracycline sodium hexametaphosphate; the hydrated or anhydrous amphoteric forms of tetracycline, the sodium hexametaphosphate and amphoteric forms being preferred.  The preferred polyimidophosphate is the ammonium salt preferably having an atomic ratio of nitrogen to phosphorus of less than 1.2 : 1 but the salts with the alkali metals, alkaline earth metals and non-toxic salts for example those with magnesium and aluminium may be used and also binary mixtures of these, for example, a mixture of substantially equal amounts of the potassium and ammonium salts.  The compositions may be in forms suitable for oral administration.  For specific purposes, additional p  medicaments may be incorporated, for example, antihistamines, sulpha drugs, lipotropic agents, laxatives, local anaesthetic, analgesics, sedatives, salts of penicillin, other antibiotics, central nervous system stimulants, vitamins, hormones, anabolic and antifungal agents.
Patent GB-1253282-A (GB)
Title: Improvements in and relating to semiconductor devices
IPC: H01L29/93
Filed: 1969-04-02
Abstract: 1,253,282. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 April, 1969 [5 April, 1968], No. 17215/69. Heading H1K. Two varicap diodes are formed back-to-back in a single semi-conductor body. 'The device is  preferably of silicon doped with arsenic and  boron, and comprises three regions 1, 2, 3  separated by PN junctions J 1  and J 2 , the region  2 being a region common 'to both diodes and being more highly doped than either of the  adjacent regions 1, 3. Low resistivity regions 4 and 5 are provided adjacent to regions 1 and 3, respectively, to act as connection contacts to which conductors 7 and 8 are connected. A common bias electrode 9 contacts common region 2 via a connection contact 6. The device is formed epitaxially by thermal decomposition of SiCl 4  doped with AsH 3  to form N-type or B 2 H 6  to form P-type semi-conductor on a  silicon substrate. A plurality of devices are  made simultaneously and later separated. The device is shaped by etching with an HNO 3 -HF mixture and aluminium contacts applied where  required. Germanium or gallium arsenide may also be used as the semi-conductor material. In another embodiment, Fig. 3, not shown, a symmetrical device is produced by forming two cavities in a major surface of a P-type semiconductor wafer and epitaxially growing two N-type regions therein followed by highly doped connection contact regions, and grinding the final surface to expose the original P-type wafer.
Patent GB-672937-A (GB)
Title: Packing material and process for its production
Inventor: NICKELSEN DAG
IPC: B65D25/14
Filed: 1949-06-29
Abstract: Packing material consisting of aluminium alloyed only with 0.3-0.8 per cent magnesium is oxidized and the oxide film coated with a synthetic lacquer.
Patent GB-308927-A (GB)
Title: Improvements connected with the drainage of steam superheaters
IPC: F22G3/00
Filed: 1928-06-14
Abstract: 308,927. Stirling Boiler Co., Ltd., and Horsman, H. S. June 14, 1928. U-tube superheaters.-Multi-pass superheaters are provided with means for conversion into single-pass superheaters for drainagepurposes. A superheater with passes 3<1>, 3<2>, 3<3>, and inlet and outlet connections 4<1>, 4<3>, is provided with an additional steam inlet connection 4 and drains 5<1>, 5<2> which are opened during drainage.
Patent GB-902278-A (GB)
Title: Improvements in vehicle ventilation and air-conditioning installations
IPC: B60H1/00
Filed: 1961-05-11
Abstract: 902,278. Ventilating vehicles. DAIMLERBENZ A.G. May 11, 1961 [May 19, 1960], No. 17245/61. Class 137. In a vehicle ventila-  tion and air-conditioning installation comprising a blower 7 with a suction connection 1 for outside fresh air, heat exchangers 8 and 9 for heating the air sucked in and delivery connections from the blower to defroster nozzles 10, 11 an additional suction connection 16 controlled by a flap 17 is provided to enable air to be sucked in from the engine compartment. The flap 17 is integrally formed with a further flap 18 in the fresh air suction duct so that the latter is shut when the connection 16 is opened. Further flaps 14 and 15 which supply heated air to the defroster nozzles and/or to the vehicle interior are also coupled with the flaps 17 and 18 so that when connection 16 is open all of the air is supplied to the defroster nozzles. An additional heat exchanger 20 is provided in the connection 16.
Patent GB-731155-A (GB)
Title: Improvements in or relating to contact lenses
IPC: B29C33/38
Filed: 1951-07-20
Abstract: 731,155. Moulding contact lenses. CARLE, J. T. DE. Oct. 20, 1952 [July 20, 1951], No. 17262/51. Class 87 (2). A corneal contact lens, viz. a lens that covers the cornea only, is made by moulding a paste comprising a mixture of methyl methacrylate monomer and polymer, the mixture being hardened in the mould by heating it to such a degree that the monomer is polymerized. The drawings show a suitable moulding apparatus, comprising glass moulds 5, 6 supported by plates 7, 8 slidable on pillars 3, 4. The moulds are shown in their open position, the plate 8 being held down, against the action of springs 12, by a catch (not shown). In operation the monomerpolymer mixture is placed between the moulds 5, 6, the catch is released, the plate 8 being allowed to rise to a position determined by sleeves 13, the mould 5 is positioned by a screw spindle 9 slightly farther from mould 6 than in the final position, the assembly is allowed to stand at room temperature for 1 hour, the mould and contents are heated to 75‹C. and maintained at that temperature for 2 hours, mould 5 is depressed to its final position, the temperature is raised to 100‹C. and kept there for 1 hour, and the assembly allowed to cool. A pointer 10 indicates the position of the plate 7.. The heating may be effected by a hot water bath.
Patent GB-1396411-A (GB)
Title: Vibration suppressing arrangements
IPC: F16F15/067
Filed: 1972-04-14
Abstract: 1396411 Resilient mountings PIELKENROOD-VINITEX BV 14 April 1972 [19 April 1971] 17268/72 Heading F2S  A resilient mounting for supporting a measuring instrument or photographic equipment comprises a base 1, 2 (Fig. 1) and 10, 11 (Fig. 3) and a support 3, 5 mounted on the base by a plurality of adjustable springs 4 and an equal number of viscous fluid dampers 13-19. Each spring is individually adjustable by screws 17. The dampers are piston-cylinder dampers arranged at the corners of an equilateral triangle. The support table 5 is maintained horizontal at all times by an hydraulically actuated lock (Fig. 4, not shown). When a load is placed on the table 5 the screws 17 are rotated (if necessary) to adjust the springs 4 until the table is level. Then the distance between pins 45 and pistons 39 is adjusted by moving each pin 45, and a handle (42, Fig. 4) is operated to hydraulically move the pistons 39 until balls (44) held in the pistons by spring blades 43 contact the pins 45.
Patent GB-662106-A (GB)
Title: Improvements in methods of making a compact rubber product from depolymerised rubber
IPC: C08K3/32
Filed: 1949-06-30
Abstract: 662,106. Depolymerized rubber compositions. HARDMAN, K. VAN H. June 30, 1949, No. 17368/49. Class 70 Depolymerized rubber is vulcanized in the presence of dry calcium oxide and/or dry phosporous pentoxide. The depolymerized rubber is obtained by heating crude, scrap vulcanized crude or reclaim rubber to temperatures between 518‹F and 572'F. Vulcanization should not be effected above 350‹F. Elemental sulphur, 0.5 to 50 parts to 100 parts of depolymerized rubber, is the vulcanizing agent and any sulphur already present is not allowed for in the above proportion. If more than 50 parts of sulphur is used it acts merely as a filler. Acceleraters, 0.5 to 5 parts to 100 parts of rubber, specified are mercaptobenzothiazole, tetramethylthiuram disulphide, diphenylguanidine and di-o-tolyl-guanidine singly or in admixture; fillers, 5 to 180 parts to 100 parts of rubber, specified are clay, carbon black, and blanc fixe, and pigments, e.g. zinc oxide, and plasticisers may also be added. The oxides of calcium and phosphorous prevent porosity in the product which may be used as an adhesive (vulcanizing occurring in situ) or as a coating for fabrics, metals or plastics.
Patent GB-293857-A (GB)
Title: Improvements in or relating to the pleating of fabrics
IPC: D06J1/00
Filed: 1928-06-15
Abstract: 293,857. British Celanese, Ltd., (Assignees of Dreyfus, C.). July 15, 1927, [Convention date]. Pleating.-Fabrics containing a thermoplastic derivative of cellulose are pleated at a temperature and pressure sufficiently high to render the cellulose derivative plastic, thereby ensuring permanent pleating. Prior to the pleating operation, the fabric, preferably, is treated by a softening agent which may be any compound producing a swelling, softening, or solvent action on the cellulose derivatives. As examples of solvents for cellulose acetate the following are given : acetone, diacetone alcohol, cyclohenanone, alcohol, aceto-acetic ester, acetic acid, ethyl lactate &c. : and as examples of swelling agents, solutions of ammonia thiocyanate, stannic chloride &c. are given. Specification 254,354, [Class 42 (i), Fabrics, Finishing &c.], is referred to.
Patent GB-912985-A (GB)
Title: Improvements in or relating to conveyor belting
Inventor: BIRT STANLEY
IPC: B65G15/34
Filed: 1959-05-22
Abstract: 912,985. Conveyer belting. GANDY Ltd. May 9, 1960 [May 22, 1959], No. 17440/59. Class 78 (1). Conveyer belting is formed with a double-ply canvas duck base 10 glued at 14 to a single-ply canvas duck 15, the single-ply 15 being wide enough to be doubled over to form double-ply sides 17 as shown. The result is a belt which takes a flat shape over the end rollers of the conveyer but intermediately it may take the channel shape shown, bending taking place at the single-ply zones 18.
Patent GB-1040804-A (GB)
Title: A process and device for cutting up metal bars and metal wires
Inventor: VERES FERENC
IPC: B23D23/00
Filed: 1964-04-27
Abstract: 1,040,804. Shearing. NIKEX NEHEZIPARI KULKERESKEDELINI VALLALAT. April 27, 1964, No. 17452/64. Heading B3W. A method of cutting up metal bars is characterized in that the part of the bar in which the cut is to be made is subjected during the cutting to a load acting along the axis of the bar and to a transverse load the loading being at least sufficient to cause plastic flow. An apparatus for performing the method comprises a base 4, an abutment 2, an apertured reciproeating cutter 5 and a loading device 6. The bar 1 is pressed in a direction parallel to its axis against the abutment 2 with a force sufficient to produce plastic flow and is then sheared by movement of the cutter 5. The travel of the cutter is sufficient to bring the sheared-off piece opposite an ejector 3. In a modification the cutting apertures 16, Fig. 3 (not shown), are formed in two pivoted arms 14, connected by links 13 to a yoke 12. The assembly takes the place of the reciprocating cutter 5. More than one pair of links may be provided so that a number of pieces are cut from the bar simultaneously.
Patent GB-434509-A (GB)
Title: Improvements in extensometers and strain gauges
IPC: G01B17/04
Filed: 1934-06-13
Abstract: 434,509. Extensometers. DAVEY, N., Building Research Station, Bucknall's Lane, Garston, Hertfordshire. June 13, 1934, Nos. 17455/34 and 644/35. [Class 106 (ii)] In instruments of the kind in which a wire is stretched between two knife edges mounted on a body with provision for relative movement, and means are provided for vibrating the wire, such means are so arranged that the tension in the wire is not transmitted to the knife edges or gauge points. The instrument comprises a bifurcated member 1 between the sides of which fits a member 2, the knife edges 3, 4 being arranged one on each member. The wire 5 is connected at one end to the front end of the member 2, the other end of the wire being connected to an adjusting screw 7, 8 passing through a cross-piece 6 of the member 1. The members 1, 2 are provided with registering notches 9, 10 at top and bottom. In these, leaf springs 11, 12 are placed and locked by wedge-shaped keys 13, 14 secured by screws 15. The wire is vibrated by electromagnets carried by the member 1. In another form the leaf springs are arranged within the length of the wire providing a shorter instrument. In still another form, the springs are arranged outside the length of gauge wire and are connected directly to the members 1, 2. A calibrating device, Fig. 10, has two anvils 30, 31 between which the standard wire 46 is clamped. The anvil 30 is adjustable by a screw 33, while the anvil 31 is connected to a spring 34 and is connected to the frame 35 by leaf springs 36. The spring 34 is a calibrated spiral spring initially under slight tension. It is connected to a sliding block 37 through which passes a micrometer screw 38, the head 39 of which co-operates with the scale 40. The standard wire is energized by electromagnets 41.
Patent GB-370262-A (GB)
Title: Apparatus for trimming metal rods, especially tubes, to length
IPC: B23B5/14
Filed: 1931-06-16
Abstract: 370,262. Lathes. TRAUT, R., 69, Friedrichstrasse, Mulheim, Ruhr, Germany. June 16, 1931, No. 17488. Convention date, Aug. 29, 1930. [Class 83 (iii).] In trimming rods to lengths in a hollowspindle lathe 1 driven by an electromotor 3, the rods are mechanically inserted into and removed from the chuck. Star-wheels 10 are rotated intermittently by a geneva-stop mechanism 21 from a shaft 16 to receive a rod 11 from a table 29, hold it in alignment with the chuck 2, and eject it to a table 30. The wheels 10 are mounted on a carriage 6 reciprocated by a cam 15. In operation, the tubes are aligned on the wheels 10, magnets 12 are energized to clamp the rod to the carriage by a switch on the shaft 16 and the carriage is moved by the cam 15 to insert the rod into the chuck. Another switch on shaft 16 energizes a magnet 5 for closing the chuck and operating the cutter slide. The chuck is then opened and the rod ejected by reverse operation of the mechanism. In a modification the mechanism is duplicated to allow of trimming each end of the rod.
Patent GB-273755-A (GB)
IPC: D01C3/00
Filed: 1926-05-03
Abstract: 273,755. Duhamel, E. C., and Compagnie GÚnÚrale des Industries Textiles. May 4, 1925, [Convention date]. Addition to 256,635, [Class 15 (i), Dyeing &c., Apparatus for]. Sheep, washing.-The process of the parent Specification, wherein wool to be washed travels continuously, without periodic stoppages for the cleansing of bowls, through a succession of bowls, each followed by squeeze rolls or the like, the wool being treated with suint liquor of a high concentration maintained substantially constant in one or more bowls by the suint supplied by the wool under treatment, is modified to be applicable also to live sheep, by carrying out the steps in bowls which require periodic emptying for cleansing and are not followed by squeeze rolls or the like, and by maintaining the concentrated bath or baths sufficiently clean either bv a purification other than by settlement, or by previous removal from the wool of the greater part of its impurities. Sheep are passed through progressively purer counter-current baths which are purified for re-use, fermentation being obviated by the use of substances as set forth in Specification 240,499, [Class 15 (i), Dyeing &c., Apparatus for].
Patent GB-273772-A (GB)
Title: Improvements in or relating to radio transmission systems
IPC: H03C1/10
Filed: 1927-07-05
Abstract: 273,772. Lorenz Akt.-Ges., C. July 5, 1926, [Convention date]. Modulating systema.- A wireless transmitting system comprises a circuit 2, 3, 4 carrying a fundamental frequency, an iron-cored highfrequency transformer 5 for raising the frequency to a higher operating frequency, a load or aerial circuit 13 - - 16 in operative relation with the transformer output circuit 6, 8, 7, and an auxiliary resonant circuit 18, 19, 20 coupled with a high-frequency circuit and containing an ironcored auxiliary magnetized choke 17 for modulating the high-frequency currents.
Patent GB-1439093-A (GB)
Title: Process for the preparation of 5-nitronaphthoquinone-1,4
IPC: C07C201/00
Filed: 1974-04-24
Abstract: 1439093 Preparation of 5-nitronaphthoquinone-(1,4) BAYER AG 24 April 1974 [26 April 1973] 17871/74 Heading C2C The invention comprises a process for the production of 5-nitro-naphthoquinone-(1,4), in which 8 - nitro - naphthoquinone - 1,4) - oxime- (1) and/or 5-nitro-naphthoquinone- 1,4)-oxime- (1) is reduced in an aqueous acidic medium or an acidic water-containing organic reaction medium at a temperature of from -10 to 110 C., by at least the equivalent quantity of sulphur dioxide and/or phosphorus in the presence of hydrogen iodide or a compound which liberates hydrogen iodide under the reaction conditions, and in which the resulting 8- and/or 5-nitro-4-aminonaphthol-(1) or the corresponding salt is oxidized to 5-nitronapthoquinone-(1,4) at a temperature of from 10 to 100 C., optionally without first isolating the reduction product.
Patent GB-407012-A (GB)
Title: Improvements in apparatus for closing cans
IPC: B21D51/32
Filed: 1932-06-24
Abstract: 407,012. Seaming cans. MALLORY, C. E., Saladillo, Rosario, Santa FÚ, and COMPANIA SWIFT DE LA PLATA SOC. ANON., Buenos Aires, both in Argentine. June 24, 1932, No. 17931. [Class 83 (iv).] A machine for closing cans by seaming in vacuo, in which the sealing mechanism is enclosed within an air-tight chamber arranged to form a tight seal with the stationary and movable parts of the said mechanism, is provided with a rotary turret which receives open filled cans outside the chamber and feeds them into the chamber and, after the cans have been exhausted of air and hermetically closed by seaming in the chamber, moves them out of the chamber to a gravity discharge position. As shown, open filled cans are pushed from a conveyer 1 by a sliding bar 2 and fed into a pocket 3 of a hollow turret 4, the rotary movement of which is controlled by a Geneva movement, by an arm 5. Can tops are fed from a magazine 6 into the tops of the pockets 3 and held therein by springs (not shown). At A inside the chamber 10 the cans are centred by a revolving disc 16 mounted on a movable support 17, pushed up by a block 19 and come in contact with the tops which are then double-seamed thereon by mechanism shown in Fig. 1. The block then recedes and the seamed cans are assisted downward by an intermittentlyacting push rod 22. The cans then continue in their circular path and emerge into the atmosphere at B where, the base plate 21 being cut away at that point, they drop onto a lower receiving plate 23 and are pushed out by an ejector arm 24 passing under the turret. The front of the chamber 10 is in the form of a semi-circular hood and rests on two hollow wall blocks 11 which have curved inner surfaces which conform with the outer face of the turret and form side seals for the pockets 3 ; these blocks are adjustable towards and away from the turret. Resting on the turret 4 and held in place by a tongue-andgroove arrangement so as to be capable of moving very slightly in the vertical direction only is a plate 14. A packing gland 26 and a sealing box 25 form air-tight housing around the turret shaft 27 and the pressure block 19 and its controlling shaft 28. An arcuate strip 18 within the chamber restrains the cans against radial movement. The rear of the chamber is enclosed by a door 20 having an inspection window 31.
Patent GB-477368-A (GB)
Title: Improvements in or relating to driving gear for domestic wringers
IPC: D06F45/00
Filed: 1936-06-29
Abstract: 477,368. Wringers. SOUTHERN, D. June 29, 1936, No. 17941. [Class 138 (ii)] A wringer 64 is secured to a casing 12 which houses the reduction gear driven by a reversible electric motor 63 also secured to the casing. The latter is provided with an angular flange engaging a corresponding recess in a split ring 41 whereby, on slackening a bolt 53, the casing, wringer and motor unit can be swung about a vertical pivot into any position and locked therein. The ring is carried by a bracket 43 secured to a washing-machine 55 which may be constructed as described in Specification 473,022. The drive is operative in all positions of angular adjustment and comprises a worm and worm wheel, the worm shaft being vertical and aligned with the vertical driving shaft of the motor. The switch for the motor is mounted on the casing 12.
Patent GB-172348-A (GB)
Title: Improvements in ignition systems for combustion engines
IPC: F02P1/08
Filed: 1920-06-30
Abstract: 172,348. Polak, M. June 30, 1920. Systems, electric.-A condenser c is placed in shunt with the sparking-plugs z and the distributor b, v. One terminal of the condenser is grounded. The other may be connected to a ring f which is mounted in the stationary part of the distributor and is permanently in engagement with the rotary brush b. In other constructions, the condenser itself is mounted in either the stationary or rotary part of the distributor, or in the case of a magneto having stationary coils it may be mounted on the armature.